Peningkatan Minat Dan Hasil Belajar Matematika Melalui Metode Missouri Mathematics Project (Mmp) Pada Siswa Kelas Iv Sd Negeri Pajang III Surakarta Tahun 2012/2013

Penelitian ini bertujuan untuk meningkatkan minat dan hasil belajar siswa pada mata pelajaran Matematika melalui metode Missouri Mathematics Project (MMP). Penelitian ini merupakan Penelitian Tindakan Kelas. Subyek penelitian adalah guru dan siswa kelas IV SD Negeri Pajang III Surakarta yang berjumlah 38 siswa. Penelitian ini diawali dengan kegiatan perencanaan, tindakan, pengamatan dan refleksi. Teknik pengumpulan data dilakukan melalui wawancara, observasi, tes dan dokumentasi. Validitas data yang digunakan adalah triangulasi teknik dan validitas instrumennya adalah validitas isi. Teknik analisis data yang digunakan terdiri dari reduksi, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan adanya peningkatan minat dan hasil belajar siswa dalam pembelajaran Matematika pada materi bilangan bulat. Peningkatan minat tersebut terlihat dalam 4 indikator yaitu perasaan senang dalam menerima pelajaran, antusias siswa dalam memperhatikan penjelasan guru, keberanian menjawab pertanyaan dari guru dan keterlibatan siswa dalam mengerjakan soal latihan. Perasaan senang dalam menerima pelajaran pada pra siklus sebanyak 15 siswa (39,47%), siklus I sebesar 21 siswa (55,26% dan siklus II sebanyak 30 siswa (78,95%). Antusias siswa dalam memperhatikan penjelasan guru pada pra siklus sebanyak 16 siswa (42,11%), siklus I sebanyak 23 siswa (60,53%) dan siklus II sebanyak 32 siswa (84,21%). Keberanian menjawab pertanyaan dari guru pada pra siklus sebanyak 15 siswa (39,47%), siklus I sebanyak 22 siswa (57,89%) dan siklus II sebanyak 30 siswa (78,95%). Keterlibatan siswa dalam mengerjakan soal latihan pada pra siklus sebanyak 20 siswa (52,63%), siklus I sebanyak 28 siswa (73,68%) dan siklus II sebanyak 34 siswa (89,47%). Sedangkan peningkatan hasil belajar matematika siswa diperoleh data pada pra siklus sebanyak 17 siswa (44,73%) mengalami ketuntasan, siklus I sebanyak 20 siswa (52,63%) mengalami ketuntasan dan siklus II sebanyak 30 siswa (78,95%). Kesimpulan penelitian ini bahwa metode Missouri Mathematics Project dapat meningkatkan minat dan hasil belajar matematika siswa kelas IV SD Negeri Pajang III Surakarta tahun 2012/2013

Electronic Warfare Simulation-based on Service Oriented Architecture

The realisation of service oriented architecture (SOA) is embodied in the accomplishments of various simulation applicable functions in the form of service encapsulation and the interconnection and interoperation of services. In this paper, an electronic warfare (EW) simulation is structured to SOA and achieved the effect of dynamic sharing and reusability. As a proof of concept, a radar electronic support (ES) simulator, which intercepts and classifies radar signals is designed and explained in this paper.Defence Science Journal, 2012, 62(4), pp.219-222, DOI:http://dx.doi.org/10.14429/dsj.62.92

Half-metallicity and Slater-Pauling behavior in the ferromagnetic Heusler alloys

Introductory chapter for the book "Halfmetallic Alloys - Fundamentals and Applications" to be published in the series Springer Lecture Notes on Physics, P. H. Dederichs and I. Galanakis (eds). It contains a review of the theoretical work on the half-metallic Heusler alloys.Comment: Introductory chapter for the book "Halfmetallic Alloys - Fundamentals and Applications" to be published in the series Springer Lecture Notes on Physics, P. H. Dederichs and I. Galanakis (eds

Virtual Compton Scattering and Neutral Pion Electroproduction in the Resonance Region up to the Deep Inelastic Region at Backward Angles

We have made the first measurements of the virtual Compton scattering (VCS) process via the H$(e,e'p)\gamma$ exclusive reaction in the nucleon resonance region, at backward angles. Results are presented for the $W$-dependence at fixed $Q^2=1$ GeV$^2$, and for the $Q^2$-dependence at fixed $W$ near 1.5 GeV. The VCS data show resonant structures in the first and second resonance regions. The observed $Q^2$-dependence is smooth. The measured ratio of H$(e,e'p)\gamma$ to H$(e,e'p)\pi^0$ cross sections emphasizes the different sensitivity of these two reactions to the various nucleon resonances. Finally, when compared to Real Compton Scattering (RCS) at high energy and large angles, our VCS data at the highest $W$ (1.8-1.9 GeV) show a striking $Q^2$- independence, which may suggest a transition to a perturbative scattering mechanism at the quark level.Comment: 20 pages, 8 figures. To appear in Phys.Rev.

Multiorgan MRI findings after hospitalisation with COVID-19 in the UK (C-MORE): a prospective, multicentre, observational cohort study

Introduction: The multiorgan impact of moderate to severe coronavirus infections in the post-acute phase is still poorly understood. We aimed to evaluate the excess burden of multiorgan abnormalities after hospitalisation with COVID-19, evaluate their determinants, and explore associations with patient-related outcome measures. Methods: In a prospective, UK-wide, multicentre MRI follow-up study (C-MORE), adults (aged ≥18 years) discharged from hospital following COVID-19 who were included in Tier 2 of the Post-hospitalisation COVID-19 study (PHOSP-COVID) and contemporary controls with no evidence of previous COVID-19 (SARS-CoV-2 nucleocapsid antibody negative) underwent multiorgan MRI (lungs, heart, brain, liver, and kidneys) with quantitative and qualitative assessment of images and clinical adjudication when relevant. Individuals with end-stage renal failure or contraindications to MRI were excluded. Participants also underwent detailed recording of symptoms, and physiological and biochemical tests. The primary outcome was the excess burden of multiorgan abnormalities (two or more organs) relative to controls, with further adjustments for potential confounders. The C-MORE study is ongoing and is registered with ClinicalTrials.gov, NCT04510025. Findings: Of 2710 participants in Tier 2 of PHOSP-COVID, 531 were recruited across 13 UK-wide C-MORE sites. After exclusions, 259 C-MORE patients (mean age 57 years [SD 12]; 158 [61%] male and 101 [39%] female) who were discharged from hospital with PCR-confirmed or clinically diagnosed COVID-19 between March 1, 2020, and Nov 1, 2021, and 52 non-COVID-19 controls from the community (mean age 49 years [SD 14]; 30 [58%] male and 22 [42%] female) were included in the analysis. Patients were assessed at a median of 5·0 months (IQR 4·2–6·3) after hospital discharge. Compared with non-COVID-19 controls, patients were older, living with more obesity, and had more comorbidities. Multiorgan abnormalities on MRI were more frequent in patients than in controls (157 [61%] of 259 vs 14 [27%] of 52; p5mg/L, OR 3·55 [1·23–11·88]; padjusted=0·025) than those without multiorgan abnormalities. Presence of lung MRI abnormalities was associated with a two-fold higher risk of chest tightness, and multiorgan MRI abnormalities were associated with severe and very severe persistent physical and mental health impairment (PHOSP-COVID symptom clusters) after hospitalisation. Interpretation: After hospitalisation for COVID-19, people are at risk of multiorgan abnormalities in the medium term. Our findings emphasise the need for proactive multidisciplinary care pathways, with the potential for imaging to guide surveillance frequency and therapeutic stratification. Funding: UK Research and Innovation and National Institute for Health Research

Spin excitations in /sup 48/Ca and /sup 90/Zr with 319 MeV protons

Cross sections, analyzing powers, and spin-flip probabilities have been measured in the low momentum transfer region in the /sup 90/Zr(p vector, p' vector) /sup 90/Zr* reaction at 319 MeV. A rich fine structure is observed for the first time in inelastic proton scattering in the previously proposed M1 giant resonance region. Angular distribution of most of these states are consistent with M1 excitation. The excitation energies of the fine structure states are in good agreement with similar structure seen in electron scattering; however, discrepancies in spin assignments remain. The measured cross section for the entire bump is about 37 +- 10% of the Distorted Wave Impulse Approximation (DWIA) prediction for the M1 strength in /sup 90/Zr with simple wave functions. However, an analysis of the fine structure states reveals about 15% of the strength in the M1 region to be due to narrow El states; another 8% is attributed to M2 strength. The spin-flip measurements for /sup 90/Zr reveal a large spin-flip probability value for the M1 region; good agreement is obtained with DWIA calculations. However, a large cross section for spin excitations distributed uniformly over the excitation energy region from about 7 to 25 MeV is observed for the first time. The spin excitation strength in this giant resonance continuum is found to about 0.80 mb/sr/MeV. Angular distributions for the spin-flip cross sections from 7 to 18 MeV in steps of 2 MeV have been analyzed with low multipole spin excitation calculations in the DWIA framework; the observed spin-flip strength in this region is found to be consistent with spin excitation involving angular momentum transfer of up to two. Finally, cross section, analyzing power, and spin-flip probability data have also been obtained for the 10.23 MeV M1 transition in the /sup 48/Ca(p vector, p' vector)/sup 48/Ca* reaction at 319 MeV. The quenching of M1 strength in /sup 48/Ca relative to theoretical predictions is found to be consistent with previous work

Water Management Technologies for Different Agro-Ecological Conditions

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Impact of Processing Technology in Hilly Region: A Study on Extraction of Apricot Kernel Oil

The paper has studied the impact of improved technology (developed under AICRP on PHT) for extraction of apricot kernel oil from apricot stone. Economic surplus model has been applied in a closed economic framework with the assumption of no spillover effects. The economic efficiency indicators such as NPV (486), IRR (44%) and BCR (21.83) have been found quite attractive. The technology (mechanical decorticator, kernel separator, oil extraction and filtration) has been found superior to conventional practices (traditional kolhu) on account of higher recovery of 11 per cent and cost reduction by 22.41 per cent. Overall, net profit per unit in the case of improved technology has been estimated to be Rs 1.34 lakh, which leads to a saving of Rs 55446 over the conventional practices. The mechanical decortications and separation could not only save time and money but also reduced women drudgery (due to manual breaking of stones to separate kernel). The technology has been found suitable for promotion of entrepreneurship on the processing of apricot oil from apricot kernel in the production catchment, which otherwise is not properly utilized